Which Is Not a Level of a Data Flow Diagram

question 40

Multiple Choice

Which is not a level of a data flow diagram?

• A) conceptual level
• B) context level
• C) intermediate level
• D) elementary level

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Definitions:

Chi-Squared Test Statistic

A statistical measure used to determine the goodness of fit between observed values and values expected theoretically.

Level of Significance

Another term for significance level, indicating the threshold below which the null hypothesis is rejected in statistical tests.

Degrees of Freedom

refers to the number of independent values in a statistical calculation that can vary without violating any given constraints.

Test Statistics

Test statistics are calculated from sample data and used in hypothesis testing to determine whether to reject the null hypothesis.